Furnace



jun: 19, 1928.

WITNESS:

L. STEINLE FURNACE Filed June 23, 1926 2 Sheets-Sheet l Z'e, on pwinzeINV E 'NTQR ATTORNEY June 19', 1928.

- L. STEINLE FURNACE Filed June 25. 1926 2 Sheets-Sheet 2' ll lnnflllllQIJIJUNIMIIIFPUILIIIUFIIIIEIIIII Zeon, fitezlnle ATTORNEY WITNESS:

Patented June 19,1928.

' tint'r-EDfsT Tss PATENT oFFicr.

, LEON STEINLE, 'orsan ANTONIO, TEXAS; I I

FURNACE.

Application filed J111ie23,

My present inventionhas reference to a hot air furnace designed forsupplying heatto a building, or to an orchard to prevent parativelysimple construction in which the parts-are so'constructed and associatedthat access thereto or replacement thereof may be made should occasionrequire.

To the attainment of the above broadly stated objects and manyotherswhich will present themselves as the nature of themventionisbetter understood, the improve ment resides in certain details ofconstruction, combination and operative association of parts, asatisfactory embodiment of which is illustrated by the accompanyingdrawings. r

In the drawings: s 4 Figure 1' is a side elevation of a furnace inaccordance with this invention.

Figure 2 is a detail vertical longitudinal sectional view therethrough.Figure 3 is a sectional view on the line 33 of Figure 2. s

Figure 4c isa sectional view'on the line 44 of Figure 2.

My improved furnace, while strong and durable, is designed to be lightlyconstructed so that the same can be moved from place to place shouldoccasion require. This is especially desirable when hotair from thefurnace is to be conducted into orchards, and

other outdoorplaces. The improvement, of.

course, may be also of a stationary nature, as when the device isemployed for heating dwellings or other buildings.

In carrying out my invention I arrange in a suitable housing 1 a blowerfan 2. The housing has its sides provided with air inlet openings andthe blower fan 2 is designed to be rotated bya small motor. The casing 1has on its outlet end or mouth 3 a tube 4. The tube 4: may be of anydesired length and nacefor lie-atingiair', that shall be of a (30111--1926. Serial in). 113,088.

is of acomparati'vely large cross sectional diameter.- The tube providesthe cold air" conducting pipe for the furnace.

The furnace includes, a hollow base 5v whose sides .are preferablyinc-lined inwardly to the open top thereof, and the ends of the saidbase, at'its, said top, are concaved, as at (3. These concaved ends aredesigned to receive therein the lower portion ofthe cylindrical body 7of the improvement forming a, heating'drum. The body 7 is preferablyofthicker b'ut not heavier material than the tube l which is removablyassociated with the fan housing 1. The body 7 may, if desired, be formedof-reinforced asbestos or other heat retaining substance and the saidbody comprises two semi-cylindrical sections, the-upper sectionhavi-njgits' sides provided onits inner edge with reduced tongues 8 thatare received in notches or grooves 9 in the lower section. The, body 7,adjacent to the ends thereof, has outwardly directed beads 10, providinginner annular grooves 11. The inwardly arched edges on their top at theends ofthe base 5 are concaved or rounded inwardly and upwardly, as at12,

so that the beads 10 of the cylindrical body 7 will snugly rest thereinand contacting therewith the said body will be held from longitudinalmovement. The lower section of the body, in a line with the open top ofthe base 5, has a substantially rectangular opening 13 therethrough, andin the base directly below this opening there is a burner .14.- A fuelconductor pipe15 leads through one end of the base and communicates withthe burner. The top of the body 7, adjacent to what I will term theouter end thereof, has an opening therethrough for the reception of avent pipe ,16.

Received in and frictionally contacting with the wall at the outer endof the cylindrical body 7 there is a funnel-shaped reducing tube 17.This tube, at its reduced end, has removably connected therewith a.

pipe or tube 18 that is in the nature of a heat distributor and leadstothe place or places where heated air is desired. Designed to be snuglyreceived. in and to contact with the walls formed bythe grooves 11 thereare cylindrical heads 19 of the heating drum 7. The heads 19 haveconnected therewith the flue pipes 20 of the drum. As disclosed by thedrawings, the flue pipes 20 are arranged in inner and outercircumferential series and have their ends flared outwardly at theirconnection With the openings in the heads 19.

The inter-engaging tongues and grooves of the sections of thecylindrical body 7 prevents any outside air entering the said body. Thedisc heads 19 are snugly received in the grooves 11 provided by thebeads 10. Of course, the base 5 is provided with a suitable door, notshown, whereby the burner 14 may be ignited and regulated. The heat fromthe burner Will pass through the opening 13 in the body 7 and willcirculate between the staggeredly related series of tubes 520 so thatthe air passing through all of these tubes'will be effectively heatedbefore entering the distributor tube or pipe 18. The volume of heatedair passing outwardly through the tubes Will contact with the flared orfunnel-shaped wall of the reduc ing tube 17, so that the heated air willbe concentrated and forced through the comparatively small diameter ofthe distributor tube 18. It is to be noted that a heater constructed asabove described, is formed in sections so that the device may be easilymoved from place to place in an orchard or the like and quickly set up.It is also to be noted that the construction is simple and the partsconstituting the same may be cheaply manufactured.

The heads 19 have riveted on the outer.

bead formed at each end, a hollow base supporting the said cylinder, theends of the base being curved at the top to receive the cylinder at theformat-ion of the head, the 7 sides of the base contacting andsupporting the said cylinder throughout its length, a heating elementcarried in the hollow base, heating tubes carried in the twosemi-cylindrical sections, the said tubes being su ported by heads whichare carried on the inside of the bead, inlet and outlet pipes connectedto the said cylinder body,- and a blower for forcing air into the inletpipe, through the tubes and out the outlet pipe.

In testimony whereof I affix my signature.

LEON STEINLE.

